ACST4-7SB-TR datasheet(7/9 Pages) KERSEMI

Part #	ACST4-7SB-TR

Description	AC POWER SWITCH

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Manufacturer	KERSEMI [Kersemi Electronic Co., Ltd.]

Direct Link	http://www.kersemi.com

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7 / 9 page

ACST4 Series

7/9

0

5

10

15

20

25

30

35

1

10

100

1000

Number of cycles

Non repetitive

T

j initial=25°C

Repetitive

T

C=100°C

t=20ms

I

(A)

TSM

Fig. 8: Surge peak on-state current versus number

of cycles.

1

10

100

1000

0.01

0.10

1.00

10.00

tp(ms)

T

j initial=25°C

dI/dt limitation:

50A/µs

I

TSM

I²t

I

(A), I²t (A²s)

TSM

Fig. 9: Non repetitive surge peak on-state current

for a sinusoidal pulse with width tp < 10ms, and

corresponding value of I²t.

0.10

1.00

10.00

100.00

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

V

(V)

TM

Tj max. :

V

to= 0.90 V

R

d= 100 mΩ

T

j=25°C

T

j=125°C

I

(A)

TM

Fig.

10:

On-state

characteristics

(maximum

values).

0

10

20

30

40

50

60

70

80

90

100

0

5

10

15

20

25

30

35

40

S(cm²)

DPAK

Rth(j-a)(°C/W)

Fig. 11: Thermal resistance junction to ambient

versus copper surface under tab (printed circuit

board FR4, copper thickness: 35µm)

0

1

2

3

4

5

6

25

50

75

100

125

Tj(°C)

V

out=300V

(dI/dt)c [Tj] / (dI/dt)c [Tj = 125°C]

Fig. 7: Relative variation of critical rate of decrease

of main current versus junction temperature.

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ACST4-7SB-TR Datasheet(PDF) 7 Page - Kersemi Electronic Co., Ltd.

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